.custom_head_c {
    position: relative;

    .custom_head_bg {
        position: absolute;
        top: 0;
        z-index: -1;
        width: 100%;
        height: 100%;
    }

    .title {
        position: absolute;
        padding: 0 34rpx;
        width: 682rpx;
        display: flex;
        align-items: center;
        font-size: 16px;
        font-weight: bold;
        color: #FFF;

        .placeholder {
            width: 30px;
            height: 100%;
        }

        .text {
            flex: 1;
            text-align: center;
        }

        .pd_left {
            padding-right: 51px;
        }
    }

    .slot_c {
        position: absolute;
        left: 0;
        right: 0;
    }
}

.white_head_c {
    position: fixed;
    left: 0;
    top: 0;
    z-index: 10;
    width: 100%;
    background-color: #fff;
    transition: opacity 1s cubic-bezier(0, 0, 0, 1);

    .title {
        color: #000;
    }
}